Steering Wheel control Primary harness adapters convert the commands from your car's steering wheel controls to a code that an aftermarket radio can recognize. A patch lead is also requires for SWC type systems based on the brand of head unit you have. for more details check out our you tube video. http://aerpro.com/video/control_harness_installation

CHMC1C Steering wheel control interface to suit mercedes - various models

Quadlock Audio 20

Description:

The Aerpro CHMC1C Steering Wheel Control Interface (SWC) allows you to upgrade to an aftermarket headunit whilst maintaining use of your factory steering wheel controls. Engineered to suit various Mercedes vehicles with AUDIO 20 headunits and without OEM Amplified sound systems, the steering wheel control interface includes a harness that is fitted with a vehicle specific plug designed to connect directly into the existing wiring in the vehicle with ease, no cutting of the factory wiring harness in the vehicle is required. Installation of the aftermarket headunit is simplified even further when paired with the optional Aerpro APP9 Headunit Secondary ISO Harness & SWC Patch Lead, which connects between the aftermarket headunit and the Aerpro Steering Wheel Control Interface. This interface is CANBUS compatible and provides various outputs including Reverse Trigger, Park Brake, Speed Pulse, Illumination and Telephone Mute.

Please Note:
- Steering Wheel Control Interfaces vary between models, to find the correct part for your vehicle use the Aerpro Vehicle Selector.
- A Steering Wheel Control Patch Lead is required to be used in conjunction with this part to enable Steering Wheel Controls to function (sold separately).
- Aftermarket headunit must be SWC compatible and Steering Wheel Control Functions may vary from the OEM Functions.
- Not suitable for OEM amplified vehicles.
- Track +/- will also control MFD. To utilise Track +/- on the aftermarket stereo ensure the MFD is in the AUDIO menu. Press and hold the Menu button the steering wheel to enter / exit.

Features:

Allows you to upgrade to an aftermarket headunit whilst maintaining use of your factory steering wheel controls
Increases driver safety by allowing you to keep your hands on the steering wheel and eyes on the road
Supports OEM Phone Button when connected to compatible aftermarket bluetooth headunits
Suits vehicle with Audio 20 Headunit and without OEM amplified sound systems
CAN-BUS integration compatible, no additional modules required for CAN-BUS vehicles
Provides output feeds for reverse trigger, park brake, speed pulse, illuminations and telephone mute
Fitted with a vehicle specific plug, no cutting of wires required
Recommended to be installed with an Aerpro APP9 Headunit Secondary ISO Harness & SWC Patch Lead (sold separately)
Requires SWC patch lead to provide compatibility with the aftermarket headunit (sold separately)

Specs:

INTERFACE TYPE: CANBUS
PATCH LEAD TYPE: C
PHONE BUTTON COMPATIBILITY: YES
VOICE ASSISTANT SUPPORT AVAILABLE: YES
- For Voice Assistant support the interface requires firmware version xx.3. To update the firmware please contact your Authorised Aerpro Dealer
- If your steering wheel control does not have a Voice Assistant button, the answer button will function as voice support instead
- Aftermarket headunit and phone must also support Voice Assistant feature for this feature to work
OUTPUTS:
- REVERSE TRIGGER: YES (PURPLE)
- PARK BRAKE: YES (GREEN)
- SPEED PULSE: YES (PINK)
- ILLUMINATION: YES (ORANGE)
- AMP REMOTE: NO
- TELEPHONE MUTE: YES (YELLOW/BLACK)
OTHER RETENTION:
- OEM AMPLIFIED SYSTEM: NO
NOTES:
- Aftermarket headunit must be SWC compatible.
- SWC patch lead is also required to enable SWC (sold separately).
- Not suitable for OEM amplified vehicles.
- Track +/- will also control MFD. To utilise Track +/- on the aftermarket stereo ensure the MFD is in the AUDIO menu. Press and hold the Menu button the steering wheel to enter / exit.